Experimental Study of Dynamic Wireless Battery Charging System for Electric Vehicles

Dynamic wireless battery charging systems for electric vehicles (EVs) have the potential to charge EVs while in motion. This can extend the driving range and a small capacity of battery can be used which reduces the vehicle's weight. However, the performance of this system depends on the magnetic coupling coefficient between coupled coils and vehicle's speed. To investigate these issues, this paper presents the experimental study of the dynamic wireless battery charging system for EVs. It consists of five experiments including the static wireless power transmission to a resistive load, dynamic wireless power transmission to a resistive load, dynamic wireless battery charging, and dynamic wireless power transmission to the running motor of EVs. All experiments are discussed in detail which leads to the exploration of the dynamic wireless battery charging system for electric vehicles.